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Bug 1886229: Clarify multipath support in release notes #30697

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merged 1 commit into from May 5, 2021
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Bug 1886229: Clarify multipath support in release notes #30697

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12 changes: 9 additions & 3 deletions release_notes/ocp-4-7-release-notes.adoc
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Expand Up @@ -53,8 +53,7 @@ This release adds improvements related to the following components and concepts.
* Native Ignition support for LUKS disk encryption provides additional configurability for encrypted root filesystems, as well as support for encryption of additional data filesystems.
* {op-system} now supports boot disk mirroring, except on s390x, providing redundancy in the case of disk failure. For more information, see xref:../installing/install_config/installing-customizing.adoc#installation-special-config-mirrored-disk_installing-customizing[Mirroring disks during installation].
* {op-system} on s390x can be installed onto fixed-block architecture (FBA)-type direct access storage device (DASD) disks.

* Multipathing is now supported during initial deployment and early boot for storage devices when attached to clusters that are created using {product-title} 4.7 or higher.
* {op-system} now supports the primary disk being multipathed.

[NOTE]
====
Expand Down Expand Up @@ -93,6 +92,13 @@ Previously, {op-system} DHCP kernel parameters were not working as expected beca

{op-system} now supports multipath on the primary disk, allowing stronger resilience to hardware failure so that you can set up {op-system} on top of multipath to achieve higher host availability. See link:https://bugzilla.redhat.com/show_bug.cgi?id=1886229[*BZ#1886229*] for more information.

[IMPORTANT]
====
Only enable multipathing with kernel arguments within a machine config as documented. Do not enable multipathing during installation.

For more information, see "Enabling multipath with kernel arguments" in xref:../post_installation_configuration/machine-configuration-tasks.adoc#rhcos-enabling-multipath_post-install-machine-configuration-tasks[Post-installation machine configuration tasks].
====

[id="ocp-4-7-rhcos-fetching-aws-from-imdsv2"]
==== Fetching configs on AWS from Instance Metadata Service Version 2 (IMDSv2)

Expand Down Expand Up @@ -2336,4 +2342,4 @@ link:https://access.redhat.com/solutions/6001181[{product-title} 4.7.9 container
To upgrade an existing {product-title} 4.7 cluster to this latest release, see xref:../updating/updating-cluster-cli.adoc#update-service-overview_updating-cluster-cli[Updating a cluster by using the CLI] for instructions.


the operator could modify
the operator could modify